UL OG EAST J 1219-27

Oil // district 9 // lease#23013

op: DE CENTRAL OPERATING, LLC

cum_oil

132k BBL

cum_gas

0 MCF

wells

1

production

2025-02 — 2026-03

peak_month

2025-07

-- production_history

cum_oil: 131,726 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

20,865 BBL/mo

Di (annual)

142.7%

b-factor

0.0

EUR

175,713 BBL

R-squared

0.892

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4310HDE IV OPERATING, LLC28,7002024-09-20
EOF // data source: Texas Railroad Commission // 2026